feat: G-2 작업실적 관리 API 구현

- WorkResult 모델 생성 (Production 네임스페이스)
- WorkResultService 서비스 구현 (CRUD + 통계 + 토글)
- WorkResultController 컨트롤러 생성 (8개 엔드포인트)
- FormRequest 검증 클래스 (Store/Update)
- Swagger 문서 작성 (WorkResultApi.php)
- 라우트 추가 (/api/v1/work-results)
- i18n 메시지 추가 (work_result 키)

API Endpoints:
- GET /work-results - 목록 조회 (페이징, 필터링)
- GET /work-results/stats - 통계 조회
- GET /work-results/{id} - 상세 조회
- POST /work-results - 등록
- PUT /work-results/{id} - 수정
- DELETE /work-results/{id} - 삭제
- PATCH /work-results/{id}/inspection - 검사 상태 토글
- PATCH /work-results/{id}/packaging - 포장 상태 토글

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/Http/Requests/WorkResult/WorkResultUpdateRequest.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Http\Requests\WorkResult;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class WorkResultUpdateRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        return [
+            'work_order_id' => 'sometimes|integer|exists:work_orders,id',
+            'work_order_item_id' => 'nullable|integer|exists:work_order_items,id',
+            'lot_no' => 'sometimes|string|max:50',
+            'work_date' => 'sometimes|date',
+            'process_type' => 'sometimes|in:screen,slat,bending',
+            'product_name' => 'sometimes|string|max:200',
+            'specification' => 'nullable|string|max:100',
+            'production_qty' => 'sometimes|integer|min:0',
+            'good_qty' => 'nullable|integer|min:0',
+            'defect_qty' => 'sometimes|integer|min:0',
+            'is_inspected' => 'nullable|boolean',
+            'is_packaged' => 'nullable|boolean',
+            'worker_id' => 'nullable|integer|exists:users,id',
+            'memo' => 'nullable|string|max:2000',
+        ];
+    }
+
+    public function messages(): array
+    {
+        return [
+            'work_order_id.exists' => __('validation.exists', ['attribute' => '작업지시']),
+            'lot_no.max' => __('validation.max.string', ['attribute' => '로트번호', 'max' => 50]),
+            'work_date.date' => __('validation.date', ['attribute' => '작업일']),
+            'product_name.max' => __('validation.max.string', ['attribute' => '품목명', 'max' => 200]),
+        ];
+    }
+}